This caddisfly landed on the finger of a fried who'd been eating a plum, and started feeding on plum juice.
No interactions present.
The 3rd pic certainly seems to show a L. lunatus- nice apical crescent edged in black, lovely. The first 2 pics appear to be a different insect? Is it a flash issue, the markings arent apparent at all in pic 1 and 2 and it resembles an Anabolia nervosa caddis.
Edit- the wing shapes are totally different regardless of markings, 2 looks like A. nervosa, seems to be the same one in the first pic.
My recollection was that I'd photographed the same insect, but thinking back I'm sure I didn't. I ought to keep a record but I often take several hundred pictures in a day, and it would be a nightmare.
Thanks for putting me straight. At least I got the lunatus right!
Its a really good L. lunatus example, the black edging to the lunar marking is diagnostic and very clear. The only confusable Limnephilus are L. borealis and L. subcentralis and boh are confined to Highland Scotland.
The observation about plum juice is interesting. They are know to go for open nectary flowers like Hogweed as they have short mouthparts and also mothing sugar and Ihave seen them feeding on aphid exudate but I cannot recall a mention of fruit juice but is of course expected. Does suggest a general ability to 'smell' fruity sugary alcoholly things.
All caddis, not just these big long-lived ones take water if thirsty and it can be a way of makig them keep still for photography when rescued from a moth trap.
Ian Wallace, UK Trichoptera Recording Scheme
Lat/Lng: 52.2477, -0.24862
OS grid ref: TL196625